13564542 has 16 divisors (see below), whose sum is σ = 27240192. Its totient is φ = 4503000.

The previous prime is 13564519. The next prime is 13564543. The reversal of 13564542 is 24546531.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13564543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2998 + ... + 6009.

It is an arithmetic number, because the mean of its divisors is an integer number (1702512).

Almost surely, 2^13564542 is an apocalyptic number.

13564542 is an abundant number, since it is smaller than the sum of its proper divisors (13675650).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13564542 is a wasteful number, since it uses less digits than its factorization.

13564542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9263.

The product of its digits is 14400, while the sum is 30.

The square root of 13564542 is about 3683.0071952143. The cubic root of 13564542 is about 238.4890140811.

The spelling of 13564542 in words is "thirteen million, five hundred sixty-four thousand, five hundred forty-two".